In the event you are aware of abnormal symptoms on your automobile, you are right to be worried, because a car represents a massive annual budget and unexpected breakdowns don’t lower the costs. So what if you find that you have a leaking injector on your Seat Tarraco? You likely figured it out thanks to black/oily drips along your engine motor, or a disturbed idle, or abnormal black smoke. These three symptoms are the main signals of a leaking injector. As this problem can end up in more severe engine complications on your car, we made a decision to publish this article content to help you ensure the failure of a leaking injector and treat it correctly. To achieve this, we will first of all take a look at the circumstance of gasoline injectors and then at those of diesel injectors Seat Tarraco.
Leaking injector on my petrol Seat Tarraco
It is essential to know that the injectors on petrol and diesel engines are distinct, in reality, the difference in combustion between these two kind of engines makes the injection distinct. The key difference lies in the pressure undergone by the injectors, on a petrol engine it will vary between 3.5 bars for indirect injection and 120 bars for indirect injection.
Leaking injector on a petrol Seat Tarraco: The different leaks
It should be noted that injector leaks on a Seat Tarraco equipped with a petrol engine are pretty rare. This is because of the much lower pressure in the petrol intake systems. Nevertheless, there are two kind of leaks:
- Leakage from the top of the injector:
It is plausible that you have a leak from the top of the injector, this is the portion that is attached to the fuel rail, an O-ring will be involved in this. - Leak injector of the lower part:
At last, you may suffer a leak coming from the lower portion of the injector of your car, this one will appear from the junction with the engine and not with the rail as seen sooner.
Leaking injector on my diesel Seat Tarraco
Unlike petrol engines, which have spark combustion, diesel engines run on compression. This combustion procedure generates very high pressure in the engine, as do the injectors. On these models, the pressure is more than 10 times higher than on the direct injection of car petrol engines, reaching 1800 to 2000 bars.
Leaking injector on diesel Seat Tarraco: The different leaks
In the circumstance of leaking diesel injectors on your Seat Tarraco, there are three different kind of leaks:
- Leakage from the injector inlet:
In this case, it is an inlet pipe that will deform over time, in most cases the leak will be at the clamping point. - Injector return leakage:
As its name implies, this leakage concerns the management of the fuel return in the injector, this time the injector that leaks on your Seat Tarraco will be brought on by an O-ring or its plastic tip that leaks. - Injector base leak:
This injection leak is one of the most bothersome, it is the junction between the engine and the injector nose that leaks at a copper seal, you should find an air noise and a compression loss. - If after checking you have oil leaking but it does not come from your injectors, we advise you to read this article content on the presence of oil leaking on your Seat Tarraco.
Leaking injector on my Seat Tarraco, how to fix the leak
And finally, we’re going to take a look at how to fix a leaking injector on your car. Regularly a leak is associated, as we have seen previously, to a worn seal due to the pressures suffered. But think that the pressure in the circuit is gigantic, especially on diesel engines. So you will have to take some safety measures:
- Lower the pressure before any work is done…
- Covering you to avoid the risk of fuel spillage
- NEVER work on a running diesel engine injector.
Relating to the repair part of your leak, it will oftentimes be restricted to replacing the seals that have failed:
- Find the source of the leak
- Dismantle the injector in question
- Change the corresponding seal kit
- Reassemble the assembly and tighten with a torque wrench in accordance with the manufacturer’s standards.
In all cases, these interventions are not necessarily complex, but if you have the smallest hesitation in the treatment of your injector that leaks on your Seat Tarraco, we advise you to get closer to your mechanic to avoid any bad manipulation that could significantly harm the condition of your Seat Tarraco.
Whenever you have any further questions about the Seat Tarraco, do not hesitate to consult our Seat Tarraco category.
